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All available Squirrel downloads
Last updated
Include framework to support HCL Domino 14.5 and higher (JVM with Java 17)
Debug mode: Show HCL Domino JVM classpath during startup
Treat server error "[SYS/TEMP] Internal error occurred" as temporary error
Some minor code changes and optimizations
Prevent logging of user credentials in Jakarta Mail debug log (Squirrel-Debug-yyyy-mm-dd.log)
Check connection to POP3/IMAP host before processing messages
Check if correct Java Mail API classes are installed
Minor code changes during connection cleanup
Add special handling for invalid formatted messages causing errors, e.g. "Unable to load BODYSTRUCTURE"
Support for emails which are represented in Java as java.io.ByteArraylnputStream
Prevent log message "duplex close of socket"
Use envelope <Return-Path> or <X-Envelope-From> if no valid sender found in mail body
Fix for duplicate cc: and bcc: recipients
Connection error "BAD User is authenticated but not connected" is now handled as temporary to avoid disabling the subscription document (occurs often in Microsoft 365)
Enhance server licensing
Minor text changes in Jakarta Mail debug log
Documentation: Product website moved to https://squirrel.k43.ch
Minor adjustments in debug logging
Treat errors during OAuth 2.0 authentication as temporary errors to prevent disabling of subscription documents
Field validation error for OAuth 2.0 fixed
Encrypt client value/secret field for OAuth 2.0
Add additional fields in account document for OAuth 2.0
OAuth 2.0 support for IMAP and POP3
Handle X.509 Internet encrypted messages
Add more detailed debugging information
Do not automatically convert to UTF-8 charset
Ignore MIME encoding errors for invalid Internet messages
Ignore unknown/unsupported MIME encoding specifications
If you are upgrading from Squirrel version 1.5.0, you need to delete the two files
1-Squirrel-Activation.jar
1-Squirrel-Jakarta.jar
from the directory 'Domino/ndext'
Add free version with a limit of three active mail subscriptions
Support coexistence with HCL Traveler
Option in configuration document to send all user account errors to the administrator
Squirrel documentation updated and moved to GitBook
Show warning message at startup if defined maximum Java heap size is less than 256MB
Add Domino statistic 'Squirrel.Messages.LastConnectTime' with time of last successful POP3/IMAP server connection
Remove some original MIME headers to avoid duplicate MIME headers (RFC 5322)
Added several code enhancements in processing MIME message content
Minor documentation changes
Preserve original recipient fields (To, Cc, Bcc)
Disable adding Domino domain name (e.g. @ACME) in recipient address
Handle empty To/From address
Support RFC 2047 encoded header fields
Minor documentation changes
Support recipient lookup for large Domino directories
Support manual entry of recipients (e.g. for group names or mail-in databases)
Minor documentation changes
Support Domino mail rule "Don't accept message"
Fix regression error in 1.3.1/1.3.2 "Folder not open"
Retry server login after receiving "EOF on socket"
Retry server login after receiving "Temporary authentication failure"
Add option to select all folders to be processed (IMAP servers only)
Add option to process all messages (read and unread) once for complete mailbox migration (see Administrator Tips)
Change product references to reflect re-branding (IBM to HCL)
Code performance enhancements during Domino MIME message body creation
Show 1 KB message size (instead of 0 KB) on console log for message size < 1 KB
Add Notes item $SquirrelFolder with the folder name of the original message (see Developer Tips)
Add check for required ACL roles to be active in configuration database (see Installation)
Shortened the length of log and debug message to the console
Correct bug when receiving Internet messages with text/html and base64 encoding
Add 125ms delay between message fetching to avoid race conditions on the Internet mail server
Set the Notes message item PostedDate to the original time of the message (see Developer Tips)
Rename the Notes item $SquirrelSentDate to $SquirrelPostedDate and set it to the time of the Squirrel message processing
Support encoded subject lines, which do not completely follow the RFC 2047 standard.
Back-End: Correct display of encoded Internet sender addresses (e.g. "=?utf-8?..")
Back-End: Minor code cleanup
Remove unused action menu
Mark Sqirrel.ntf as template in database properties
Include JAddin 2.1.1 framework
Use Domino router database mail1.box if mail.box is not present
Correct possible loop while encountering startup errors
Correct NullPointerException for missing sent date in MIME mail
Support MIME messages which are mapped in Java API as com.sun.mail.util.BASE64DecoderStream
Add Domino console log message every hour if no mail account document is active
Force UTF-8 for all MIME character set conversions
Configuration document: "Send sys msg to" is now a Domino directory names lookup field
Internet mail account subscription: New field for comments
Internet mail account views: Action button for set active/inactive
Internet mail account views: Include columns for used connections and comments
Squirrel.ntf template: Set default ACLs
Minor code changes and cleanups
First official release
Third internal beta version - Feature completed
Add all notification email for the administrator
Second internal beta version
Add support for POP3S and POP3
First internal beta version
First alpha version (Proof of concept)
Include 2.1.3 framework
Include (minor fixes)
Include the freeware 1.0.0 framework for OAuth 2.0 authentication
Added file SOFA-Logging.properties to the distribution packet to parameterize the OAuth 2.0 debug logging (see )
Include 2.1.2 framework (minor fixes)
Include and Eclipse Jakarta Activation to replace older JavaMail API
Write logging from Jakarta Mail API during active debugging to file 'Squirrel-Debug-YYYY-MM-DD.log' (see )
Experimental support for (Client XOAUTH2). This feature is currently in a beta phase. Please send any feedback to